Electric eailwat motor



4 Sheets-Sheet 1.

(No Model.)

N. C. BASSETT.

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4 T mi E S S A B C. N

ELECTRIC RAILWAY MOTOR.

Patented Aug. 4, 1891.

QMQQ/ (No Model.) 4 Sheets-Sheet, 4.

' N. C. BASSBTT.

ELECTRIC RAILWAY MOTOR.

No. 457,102. Patented Aug.'4, 1891.

WITNESSES: INVENTOR:

TN: Noms ruins co., mum-uma., msm: c.

UNITED STATES PATENT OFFICE.

NORMAN C; BASSETT, OF LYNN, MASSACHUSET'S, ASSIGNOR TO THE THOM-SON-HOUSTON ELECTRIC COMPANY, OF CONNECTICUT.

ELECTRIC-RAILWAY MOTOR.

SPECIFICATION forming part of Letters Patent No. 457,102, dated August4, 1891.

Application filed March 30,1891. Serial No 386,925. (No model.)

T0 all whom t may concern,.-

Be it known that I, NORMAN C. BAssETT, a citizen of the United State,residingat Lynn, in the county-ot' Essex and State of Massachusetts,have invented a certain new and useful Improvement in Electric-RailwayMotors, of which the following is a specification.

My present improvements in elect1ic-rail way motors relate to awater-proof inclosing case or frame, to means for protecting thefield-coil from injury, and to other features hereinafter set forth andclaimed.

These improvements are illustrated in the accompanying drawings,wherein- Figure is a partly-sectioned end view, and Figs. 2 and 3 arerespectively a plan and an axial section ot' the motor. Figs. 4 and 5show details. Fig. 6 is alongitudinal central section through thefield-magnet frame, and Fig. 7 shows the self-closing d rainagecock.

In my improved railway motor the eldmagnet A A forms the frame of themotor, and also forms a case or shell completely inclosing the armatureB and the Held-magnet coil C. There are two tield-poles cast solid withthe said frame, but only the upper pole D is surrounded by a field-coil.The lower pole D is unwound, a lower eld coil being dispensed with. Thefield-magnet trame is cast in two portions A A', which are united on theplane of the axle E and arm atureshaft F. The lower frame portion, whichhas the lower pole cast solid thereon, forms a watertight trough, dish,or bowl-shaped casting whose sides are carried up to the. level of theaxle and armature-shaft. This construction enables the motor to travelthrough water up to the axle without injury, as the water is completelyshut oil.e fromthe armature. Moreover, the field-coil, being at the top,is well protected from such water and dirt as may enter throughVentilating-openings. The single upper field-coil therefore presents inthis connection, besides the advantages of less cost and greatersimplicity which are inhe rent in a single field-coil motor, additionaladvantages due to the location of the coil above the armature, suchadvantages accruing only when the mot-or is used in situations exposedto dii-tand water, as onarailway-car.

The motor is used with a single reductiongear, the bearings d d for thearmature and the axle being formed half and halt in the two trameportions. It is often necessary to lift the upper motor-frame portionfor in'l 55 spection or repair oi the interior parts, and

it is desirable that the frame should be capable ot being swung up ateither end. For

this purpose the upper and lower frame portions A A are hinged togetherat each end 6c by hinge-joints I I. Bolts K lirmly clamp the twoportions together. On removing these boltsand withdrawing the hinge-pinsat either end the upper frame maybe swung up, hinging or turning on theother end, as represented by dotted lines in Fig. l. To hold the lowerframe A from falling when the upper frame is swung up and the topbearing on the axle thereby removed, an independent support on the axleis provided therefor, consisting of a strap or hook N, engaged at oneend in a recess and at the other end ou a screw-pin in the lower frame,as shown in Fig. 4, and extending over the axle, so that when the upperframe is lifted the strap drops onto the axle and supports the lowerframe. When the lower frame is to be dropped, the screw-pin `n iswithdrawn and the strap removed by swinging it around its other end. Theupper frame portion A', also cast in one piece, has Ventilating openingsor windows M, protected by watershedding shutters with outwardly anddown wardly inclined slats, which at once facilitate ventilation andshed the water which may be thrown against the motor from the sides.These S5 shutters M slide in grooves m in the frame A', and have caps moverlapping the top of the frame. Ribs d5 and grooves at; are providedon the top of the trame A to deflect and guide away from the windows Many water which may fall on the motor. The shutter-caps nl. have tlangesm2 projecting into grooves a to shut ott the water from the. openings M.To catch and retain any water or dirt which may penetrate through theside Ventilating-openings and prevent the saine from reaching thearmature, receptacles G are formed within and at the sides of the lowercasing A. By means ot stop-cocks H, which should be self-closing, thesereceptacles may beemptied from time to time. Oil from thearmature-bearings will also be retained by IOO these receptacles andprevented from fouling the armature.

In order to further protect the field-coil C, I support the sameelastically and yieldingly by means of rubber cushions L L L2,interposed between it and the field-magnet frame, the coil being out ofdirect contact with said frame. Cushions L take the weight of the spoolC and are supported in brackets l. Cushions L prevent contact betweenthe spools and the frame top, and are recessed into said top. CushionsL2 between the spool and the sides of the frame hold the spoollaterally. These rubber cushions serve both to insulate the spool fromthe frame and to ease o or deaden the effect on the spool of the shocksgiven to the frame by rough riding over the tracks, thereby prolongingthe life of the field-insulation.

Vhat I claim as new, and desire to secure by Letters Patent, is-

1. An electric-railway motor having a fieldmagnet frame or shellinclosin g the armature on all sides, and having proj ecting inwardlytherefrom an upper pole surrounded by a ield-coil and a lower unwoundpole.

2. An electric-railway motor having a fieldmagnet frame or shellinclosing the armature on all sides, and having a water-tight lowerAportion and a ventilated upper portion.

3. An electric-railway motor havinga fieldmagnet frame or shellinclosing the armature on all sides, but provided withVentilatingopenings, and having an upper coil-wound pole and a lowerunwound pole.

4. An electric-railway-motor frame journaled on the axle, and having itslower portion, up to the line of the armature-shaft and axle, cast inone piece to form a water-tight shell with closed bottom and sides,completely inclosing the lower half of the armature.

5. The combination, with a motor-frame in the form of a closed shellinclosing and having journal-bearings for the armature, of theoil-receptacles within said frame, beneath said bearings, anddrainage-outlets for said receptacles.

6. A motor-frame in the form of a closed shell surrounding the armature,and having a water-tight lower portion, a ventilated n pper portion, andreceptacles beneath the ventilating-openings, substantially as setforth.

'7. The combination, with the water-tight lower frame or shell ol' therailway-car motor, of the drainage-receptacle therein, and a selfclosingstop-cock for said receptacle.

8. A motor-inclosing shell having a ventilatingopening with outwardlyand downwardly directed slats.

il. The combination, with amotor-inclosing frame having a groove in itstop, of a ventilating sliding window with a cap and Iiange extendinginto said groove.

lO. The motor-nclosing frame having ventilating-openings andwater-deiiecting ribs or equivalent portions on its top.

Il. The motorframe having upper and lower portions hinged together ateach end, substantially as and for the purpose set forth.

12. A motor-frame having an upper portion and a lower portion hingedtogether' at each end and fastened together by bolts.

13. The combination, with a motor-f rame formed in two portions hingedtogether, the upper portion supported by a jonrn al-bearin g on the axleand the lower portion heilig suspended therefrom, of the independentsupport for the lower portion, substantially as described.

le. The combination of the upper motorframe portion jou rn aled on theaxle, the lowerframe portion hung therefrom, and the strap or hookattached to the lower frame and extending over the axle.

l5. An electric motor having its field-spool out of direct contact withits core or frame, with insulating and elastic supports between saidspool and the core or frame.

16. The combination, with thc field-magnet frame of a motor, of thefield-coil supported thereon by elastic cushions.

17. The combination, with the held-magnet frame of the motor, ol' theyieldingly-supported Iield-spool. n

In witness whereof I have hereunto set my hand.

NORMAN C. BASSET". Witnesses:

JOHN W. GrnBoNnY, Oris K. STUART.

